General Electric GE 6U8 6U8A 6AX8 5KD8 6KD8 ECF82 Vacuum Tube Valve NOS NIB Facades Suites There were no shorts or

There were no shorts or gas and they measured as follows (from left to right

new in box RCA 6U8A (ECF82 / 6AX8 / 5KD8 / 6KD8) pentode/triode was tested on our Paul Hart-calibrated TV7/U for shorts

perfectly-matched pair of Sylvania 12B4A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

8 milliamps' plate current / 2170 micromhos

I am playing them in my Sound Craftsmen RC-2 monoblocks with at 6

General Electric GE 6U8 6U8A 6AX8 5KD8 6KD8 ECF82 Vacuum Tube Valve NOS NIB Facades Suites There were no shorts orThis new old stock, new in box GE 6U8A (ECF82 6AX8 5KD8 6KD8) pentode triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 96 78. Minimum (65%) is 57 57 and 100% is 88 88. As I write, I am playing it using an adapter (not included) in our Dynaco Stereo 70. It sounds great with Pink Floyd's "Obscured By Clouds," replicating this album's nuances and dynamic range with